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- 2025-01-21Kubernetes Blog
Spotlight on SIG Architecture: Enhancements
Spotlight on SIG Architecture: Enhancements The Enhancements subproject The KEP and its impact Current areas of focus Getting involved This is the fourth interview of a SIG Architecture Spotlight series that will cover the different subprojects, and we will be covering SIG Architecture: Enhancements. In this SIG Architecture spotlight we talked with Kirsten Garrison , lead of the Enhancements subproject.
#kubernetes - 2024-12-18Kubernetes Blog
Kubernetes 1.32: Moving Volume Group Snapshots to Beta
Kubernetes 1.32: Moving Volume Group Snapshots to Beta An overview of volume group snapshots Why add volume group snapshots to Kubernetes? Kubernetes APIs for volume group snapshots What components are needed to support volume group snapshots What's new in Beta? How do I use Kubernetes volume group snapshots Creating a new group snapshot with Kubernetes How to use group snapshot for restore in Kubernetes As a storage vendor, how do I add support for group snapshots to my CSI driver? What are the limitations? What’s next? How do I get involved? Volume group snapshots were introduced as an Alpha feature with the Kubernetes 1.27 release. The recent release of Kubernetes v1.32 moved that support to beta.
#kubernetes - 2024-12-17Kubernetes Blog
Enhancing Kubernetes API Server Efficiency with API Streaming
Enhancing Kubernetes API Server Efficiency with API Streaming Why does kube-apiserver allocate so much memory for list requests? Streaming list requests Enabling API Streaming for your component What's next? The synthetic test Kubernetes 1.33 update Managing Kubernetes clusters efficiently is critical, especially as their size is growing. A significant challenge with large clusters is the memory overhead caused by list requests.
#kubernetes - 2024-12-16Kubernetes Blog
Kubernetes v1.32 Adds A New CPU Manager Static Policy Option For Strict CPU Reservation
Kubernetes v1.32 Adds A New CPU Manager Static Policy Option For Strict CPU Reservation Understanding the feature Enabling the feature Monitoring the feature Conclusion Further reading Getting involved In Kubernetes v1.32, after years of community discussion, we are excited to introduce a strict-cpu-reservation option for the CPU Manager static policy. This feature is currently in alpha, with the associated policy hidden by default.
#kubernetes - 2024-12-13Kubernetes Blog
Kubernetes v1.32: Memory Manager Goes GA
Kubernetes v1.32: Memory Manager Goes GA Observability improvements Improving memory manager reliability and consistency Future development Getting involved With Kubernetes 1.32, the memory manager has officially graduated to General Availability (GA), marking a significant milestone in the journey toward efficient and predictable memory allocation for containerized applications. Since Kubernetes v1.22, where it graduated to beta, the memory manager has proved itself reliable, stable and a good complementary feature for the CPU Manager.
#kubernetes - 2024-12-12Kubernetes Blog
Kubernetes v1.32: QueueingHint Brings a New Possibility to Optimize Pod Scheduling
Kubernetes v1.32: QueueingHint Brings a New Possibility to Optimize Pod Scheduling Scheduling queue Scheduling framework and plugins Improvements to retrying Pod scheduling with QueuingHint QueueingHint's history and what's new in v1.32 Getting involved How can I learn more? The Kubernetes scheduler is the core component that selects the nodes on which new Pods run. The scheduler processes these new Pods one by one.
#kubernetes - 2024-12-11Kubernetes Blog
Kubernetes v1.32: Penelope
Kubernetes v1.32: Penelope Release theme and logo Updates to recent key features A note on DRA enhancements Quality of life improvements on nodes and sidecar containers update Highlights of features graduating to Stable Custom Resource field selectors Support to size memory backed volumes Bound service account token improvement Structured authorization configuration Auto remove PVCs created by StatefulSet Highlights of features graduating to Beta Job API managed-by mechanism Only allow anonymous auth for configured endpoints Per-plugin callback functions for accurate requeueing in kube-scheduler enhancements Recover from volume expansion failure Volume group snapshot Structured parameter support Label and field selector authorization Highlights of new features in Alpha Asynchronous preemption in the Kubernetes Scheduler Mutating admission policies using CEL expressions Pod-level resource specifications Allow zero value for sleep action of PreStop hook DRA: Standardized network interface data for resource claim status New statusz and flagz endpoints for core components Windows strikes back! Graduations, deprecations, and removals in 1.32 Graduations to Stable Deprecations and removals Release notes and upgrade actions required Availability Release team Project velocity Event updates Upcoming release webinar Get involved Editors: Matteo Bianchi, Edith Puclla, William Rizzo, Ryota Sawada, Rashan Smith Announcing the release of Kubernetes v1.32: Penelope! In line with previous releases, the release of Kubernetes v1.32 introduces new stable, beta, and alpha features. The consistent delivery of high-quality releases underscores the strength of our development cycle and the vibrant support from our community.
#kubernetes - 2024-11-21Kubernetes Blog
Gateway API v1.2: WebSockets, Timeouts, Retries, and More
Gateway API v1.2: WebSockets, Timeouts, Retries, and More Breaking changes GRPCRoute and ReferenceGrant v1alpha2 removal Change to. status.
#kubernetes - 2024-11-21Kubernetes Blog
How we built a dynamic Kubernetes API Server for the API Aggregation Layer in Cozystack
How we built a dynamic Kubernetes API Server for the API Aggregation Layer in Cozystack What Is the API Aggregation Layer? When to use the API Aggregation Layer Imperative Logic and Subresources You're not tied to use etcd One-Time resources Full control over conversion, validation, and output formatting Dynamic resource registration When not to use the API Aggregation Layer Unstable backend Slow requests Why we needed it in Cozystack Limitations of the RBAC model Need for a public API Two-Way conversion Implementation Disable etcd support Generate a common resource kind Configure configuration loading Implement our own registry What did we achieve? Next Steps Conclusion Hi there! I'm Andrei Kvapil, but you might know me as @kvaps in communities dedicated to Kubernetes and cloud-native tools. In this article, I want to share how we implemented our own extension api-server in the open-source PaaS platform, Cozystack.
#kubernetes - 2024-11-08Kubernetes Blog
Kubernetes v1.32 sneak peek
As we get closer to the release date for Kubernetes v1. 32, the project develops and matures.
#kubernetes